NetBSD/share/man/man4/sb.4

.\"	$NetBSD: sb.4,v 1.3 1996/02/27 22:39:42 jtc Exp $
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.\" by John T. Kohl.
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.Dd November 4, 1995
.Dt SB 4 i386
.Os 
.Sh NAME
.Nm sb
.Nd
SoundBlaster family (and compatibles) audio device driver
.Sh SYNOPSIS
.Cd "sb0 at isa? port 0xPPP irq X drq Y"
.Sh DESCRIPTION
The
.Nm sb
driver provides support for the SoundBlaster, SoundBlaster Pro,
SoundBlaster 16, and hardware register-level compatible audio cards.
.Pp
The SoundBlaster series are half-duplex cards, capable of 8- and 16-bit
audio sample recording and playback at rates up to 44.1kHz (depending on
the particular model).
.Pp
The base I/O port address is usually jumper-selected to either 0x220 or
0x240 (newer cards may provide software configuration, but this driver
does not directly support them--you must configure the card for its I/O
addresses with other software).  The SoundBlaster takes 16 I/O ports.
For the SoundBlaster and SoundBlaster Pro, the IRQ and DRQ channels are
jumper-selected.  For the SoundBlaster 16, the IRQ and DRQ channels are
set by this driver to the values specified in the config file.  The IRQ
must be selected from the set {5,7,9,10}.
.Pp
.Sh BUGS
The driver has not been extensively tested on original SoundBlaster,
SoundBlaster 16, or newer cards.
.Pp
The FM synthesizer, joystick and MIDI port interfaces are not supported.
.Sh SEE ALSO
.Xr audio 4
.Sh HISTORY
The
.Nm sb
device driver appeared in
.Nx 1.0 .